<template>
  <div class="login_container">
    <div class="login_box">
      <!-- 头像 -->
      <div class="avatar_box">
        <img src="../assets/logo.png" alt="" />
      </div>
      <!-- 登录表单区 -->
      <!-- ref就是在this.$refs上添加一个属性 以便进行类如重置等操作  -->
      <!-- rules就是一些规则 需要定义在data上 -->
      <el-form  :model="loginForm" ref="loginFormRef" :rules="loginFormRules" label-width="0px" class="login_form">
          <!-- 用户名 -->
        <el-form-item prop="username">
          <el-input v-model="loginForm.username" prefix-icon="el-icon-user"></el-input>
        </el-form-item>
        <!-- 密码 -->
         <el-form-item prop="password" >
          <el-input v-model="loginForm.password" type="password" prefix-icon="el-icon-search"></el-input>
        </el-form-item>
        <!-- 按钮 -->
          <el-form-item class="btns">
              <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>
<script>
export default {
        data(){
            return{
                loginForm:{
                    username:'admin',
                    password:'123456'
                },
                //这是表单的验证规则
                loginFormRules:{
                    // 验证用户名是否合法
                    username:[
                        // required 是一个必填项， trigger: 'blur'失去焦点触发验证
                         { required: true, message: '请输入登录名称', trigger: 'blur' },
                         { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
                    ],
                    // 验证密码是否合法
                    
                    password:[
                             { required: true, message: '请输入登录密码', trigger: 'blur' },
                         { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
                    ]
                }
        }
        },
        methods:{
            resetLoginForm(){
                console.log(this)
                this.$refs.loginFormRef.resetFields();
            },
            login(){
                this.$refs.loginFormRef.validate(async valid=>{
                   if(!valid) return;
                   const {data:res} =await this.$http.post('login',this.loginForm);
                   console.log(res)
                if(res.meta.status !==200)return this.$message.error('登录失败')
                // console.log('登录成功')
                this.$message.success('登录成功')
                sessionStorage.setItem("token",res.data.token)
                this.$router.push({path:'/home'})
                })
            }
        }
};
</script>

<style  scoped>
.login_container {
  background-color: #2b4b6b;
  height: 100%;
}
.login_box {
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
.avatar_box {
  height: 130px;
  width: 130px;
  border: 1px solid #eee;
  border-radius: 50%;
  padding: 10px;
  box-shadow: 0 0 10px #ddd;
  position: absolute;
  left: 50%;

  transform: translate(-50%, -50%);
  background-color: #eee;
}
.avatar_box img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background-color: #eee;
}
.login_form{
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box;
}
.btns{
    display: flex;
    justify-content:flex-end;
}

</style>

